kestzer



(No Model.)

J KINZER, Jr.

BRAKE SHOE CONNECTION.

I Patented Aug. 4, 1896.

F'lB.i.

WITNESSES:

INVENTOR,

wASmmYOn, a. c

UNITED STATES PATENT Fries.

JOHN J. KINZER, .lR., OF PITTSBURG, PENNSYLVANIA, ASSIGNOR TO THE KINZER& JONES MANUFACTURING COMPANY, OF SAME PLACE.

BRAKE-SHOE CONNECTION.

SPECIFICATION forming part of Letters Patent No. 565,004, dated August4, 1896.

Application filed October 24, 1895. Serial No. 566,775. (NO flelilbrake-shoes to the brake-beam and in supporting the shoes and beam fromthe truck, and the invention has for its object such a construction ofthese connections as will permit of a yielding application of the shoeto the wheel.

The invention is hereinafter more fully described and particularlyclaimed.

In the accompanying drawings, forming a part of this specification,Figure 1 is a perspective view of a portion of a car-truck having myimprovement applied thereto. Fig. 2 is a vertical section of the shoeand connection, the plane of section being indicated by the line II II,Fig. 3. Fig. 8 is a transverse section of the same, the plane of sectionbeing indicated by the line III III, Fig. 2.

"While I have shown my improvement in connection with a composite shoeconsistiug of a shell 1 and a filling 2 of any suitable material, myinvention is equally applicable to solid shoes. The shoe is detachablyconnected to a block, which is provided with means whereby thebrake-beam and hanger may be connected thereto. In order to prevent thelocking of the wheels by a quick and severe application of the brakes, aspring is interposed between the shoe or shoe-carrier and the block,which in such case is movably as well as detachably connected to theshoe or carrier, as hereinafter more particularly described.

It is preferred to employ a leaf-spring between the block and shoe orcarrier, as such form of spring will be less liable to injury in use,and hence my improvement is shown in connection with such a form ofspring, although it is not limited thereto.

On the back of the shell or shoe are formed shoulders or transverse ribs3, and between these ribs or shoulders I arrange a concavoconvex springa, somewhat shorter than the distance between the ribs, so as to permitof a flattening of the spring when pressure is applied thereto. Thespring is held in place by a block 5, arranged between ears or lugs 6.The block is held in position by means of a pin 7, passing through ahole in the block and slots 8 in the ears or lugs. The slots in the lugsare so located that the spring 3 must be slightly compressed in order tobring the hole in the block in line with the slots for the insertion ofthe connecting-pin 7, so that normally the pin is pressed against theouter ends of the slots by the spring, which in turn is so held by theblock that its ends cannot be lifted over the ribs or shoulders Theblock is preferably provided with holes, one for the reception of thehangerlink 9 and the other for the reception of the end of thebrake-beam 10, although the link and beam may be attached to the blockin any other suitable manner.

It will be readily understood by those skilled in the art that a shoecan be easily and quickly removed and a new shoe inserted withoutdisturbing the connections with the truck and brake-beam, as it is onlynecessary to knock out the pin 7, thereby releasing the shoe. hen thenew shoe has been placed in position, pressure applied to the block orbrake-beam will bring the holes in the block into register with theslots in the ears or lugs, so as to permit of the insertion of the'pins7.

The spring being placed between the shoe and brake'beam insures a steadyand even application of the shoe to the wheel, as if a sudden and severepressure is applied, as in an emergency application of the brakes, thespring will yield and prevent a locking of the wheels and so insure themost eifective application of the brakes.

I claim herein as my invention-- 1. The combination of a brake-shoe orbrake-shoe carrier, a block movably connected to the shoe or carrier andprovided with means for attachment to the brake-beam and hanger and aspring interposed between the block and shoe or carrier,substantially asset forth.

2. The combination of a brake -shoe or brake-shoe carrier provided withSl'lOUlClOlS or ribs, a block movably and detachably connected to theshoe or carrier and provided with means for connection to thebrake-beamand hanger, and a spring interposed between the block and shoeor hanger and. between the ribs or shoulders on the shoe or carrier,substantially as set forth.

In. testimony whereof I have hereunto set my hand.

JOHN J. KINZER, JR.

\Vitnesses:

DARWIN S. WoLooTT, F. E. GAITHER.

